Laura Caponetti Arcangelo Distante Nicola Ancona R. Mugnuolo 3D object recognition based on a viewpoint-analysis. 549-556 1992 10 Image Vision Comput. 8 http://dx.doi.org/10.1016/0262-8856(92)90075-E db/journals/ivc/ivc10.html#CaponettiDAM92